ACUTE AND CHRONIC TOXICITY OF NONYPHENOL TO TEN SPECIES OF AQUATIC ORGANISMS

Abstract

The Environmental Health Laboratory at the University of Wisconsin-Superior (UW-S)conducted tests to complete the data set necessary to derive national water quality criteria for nonylphenol. The tests were the eight acute tests specified in the "Guidelines for deriving numerical national water quality criteria for the protection of aquatic organisms and their uses" (Stephan et al. 1985). Two acute tests with plants were also conducted. The Guidelines require three chronic tests to derive a chronic criterion. Two chronic tests were conducted with freshwater species sensitive to nonylphenol. The third chronic must be for a saltwater species if both fresh and saltwater criteria are to be developed.